Typewriting machine



March 2,1926. 1,574,905

7 A. G. KUPETZ TYPEWRITING MACHINE Filed Oct. 28 1922 lnrenfor: W M

Arm/1e Patented Mar. 2, 1926.

UNlTESTA'tES @FFiQtl.

ADOLPH G. KUPETZ, OF NEW HE")? YORK ASSIGJFTOR TO UNDEBWOOD TYPEWRITER COMPANY, OF NEW YORK, N. 1 A CQRPORATIOH CF DELAWARE.

TYPEWRITING MACHINE.

Application filed October 28, 1922. Serial No. 597,437.

T 0 all whom it may concern Be it known that I, Aoonrn Knrn'rz, a citizen of the United States, residing in New Rochelle, in the county of i i estchester and Stateot New York, have invented certain new and useful Improvements in writing Machines, of which the tolloning is a specification This invention relates to machines, and more particul: to type writing machines for writing oills for telephone service, and is illustrated in the same type of machine disclosed in my pending applications, Serial do. 592,682. filed October 6, 1922, and Serial No. 595,766. tiled October 20, 1922. In making out these bills. it is required to type separately the amounts of United States taxes. It is desirable at the same time to keep track ot the totals of the tax items for a day or other long period. This has been done in the machines referred to by providing special 5 and 10 keys to be used for no other purpose than the writing of the tax items, and by providing registers of the type of the wellknown Veeder cyclometer for separately counting the operations of the special typekeys.

The'machines referred to are character ized by the provision of spring means for advancing the operating arms of the regis ters to count and for maintaining the operat ing arms normally at the advance limits or their movements. This new normal position of the register-operating arms results in the registers being maintained normally in a locked condition, which makes it necessary to retract the operating arm of a register in order to enable the register-clearing mechanism to be operated. A partial retraction of the operating arm through distance less than that required to cause an operation of the register is sutlicient to unlock the wheels and permit their being turned by the clearing mechanism. Unless means are provided, however, for controlling the distance through which the operating arm may be moved for this purpose, the operator. in attempting to cause such a partial retraction. is apt to move the operating arm too far, and to cause the clearing operation to be followed by a counting operation, thus running a unit into the wheels. On the other hand, a full retraction of the operating arm, such as is effected by the depression of the number-key, while certain in its eii'ect, necessitates the provision of means for arresting the clearing operation with the number-wheels standing at 9, in order that the ensuing countin operation which occurs upon the restoration of the parts to normal position may advance the wheels to O. The principal feature of this invention is the provision of supplemental means, in a machine of the character referred to, for partially retracting the register-operating arm independently oi the number-key to unlock the r ster and for limiting the extent of the retracting; movement, so as to positively insure that the register will not be op .d on the return of the arm to its normal position, and hence provides a shuplc and etl'cctive means whereby the number-wheels may be cleared directly to O and independent of the return movement of the operating arm to relock the wheels. Thus the operating arm is subject to a full operative stroke between fixed stop positions by the number-key and a partial inoperative stroke by the supplemental means for clearing purposes.

Other "features and advantages will hereinafter appear.

in the accompanying drawings,

Figure 1 is a sectional side elevation oi the front portion of a typewriting machine having the present improvements applied thereto.

Figure 2 is a plan view of the front righthand portion oi the machine.

Figure is a sectional view of a register on the line of Figure 2, showing the parts in their normal positions.

Figure e is a view, similar to Figure 3, showing the parts in the positions to which they are moved to unlock the number-wheels in a clearing operation.

Figure 5 is a vertical sectional view of the register, showing the arrangement of the operating and clearing shafts.

The typewriting machine comprises number-keys 11, alphabet-keys 12, and key-levers 13 operated by the keys to cause types 14 to print in the usual manner. Special keys are provided to be used exclusively for writing the tax items, one such key for writing the number 5 being shown at 5. A bracket 15, which may be clamped to the frame 16 of the machine by screws 17 and a clamping plate 18, supports a register 19 for counting the operations 01' the special 5 key. Although only one special key and one register are shown, it will be understood, of course, that the invention is not limited in scope to use with a single special key and a single register. A rock-shaft 20', journaled in the lower portion of the bracket 15, has a crankarm 21 underlying the special 5 key in proximity to the stem 22 thereof and a second crank-arm 23 which has a pin-andslot connection with the operating arm 2% of the J'EQjlStl' 19. A spring 25, connected to the tail of the registerperating arm 24 and to the bracket 15, norn'ially maintains the operating arm 2% at the advance limit of its movement. The depression of the special 5 key retracts the operating arm 24: to prepare the register for an operation, and the spring advances the operating arm to effect the operation.

The register 19 may be conveniently an,

ordinary Veeder cyclometer. The registeroperating' arm 24:. is lined to an operating rock-shaft which carries and oscillates a yoke 27. A series of pawls 1-8 is pivotally mounted on this yoke and is spring-pressed toward number-wheels 29 for co-operation with ratchet-teeth 30 on the number-wheels and with intervening shallow and deep notches 31 and 32 in the usual way. A hubportion 33 of the yoke 27 operates a gearsegment 34- to swing stops into and out of engagement with the ratchet-teeth 30 on the number-wheels 29 to prevent overthrow of the number-wheels and to lock them against advance in the normal position of the parts, which is the position in which they are shown in Figure 3. Spring-pressed pawls 36 lock the number-wheels 29 against retrograde movement. A clearing handle 37 is provided, for turning a clearing shaft 38 having a series of one-toothed cams 39 fixed upon it, one cam for each of the numberwheels 29. Each number-wheel carries a pawl 40 and a spring 41 which presses the pawl into engagei'nent with its cam 39 on the clearing shatt.

F or the nn-pose ot' unlocking the numberwheels 29 by a partial retraction of the operating arm 24:, a supplemental unlocking handle or lever 42 is rotatably mounted on the operating shaft 26, and is provided with a lug 43 extending laterally to overlie and engage the register-ope 'a'ting arm 24;. This handle 42 has a tail 42 which, by engagement with apin 44' on the register-frame 45, limits the depression of the unlocking handle. \Vhen the operating arm 24; is actuated by the number-key 5 in the ordinary operation oi. the machine, the unlocking handle 42 remains immovable, a cup-spring 46 mounted on the register-operating shaft 26, between the unlocking handle and the register-frame 45, exerting a light frictional pressure against the handle 42 to retain it in its ele vated position. W'hen it is desired to clear the register 19, the operator depresses the unlocking handle 42 as tar as the stop-pin a l; will permit. This moves the parts to the position shown in Figure t, in which posi tion it will be noticed that the stops 35 are swung clear oil? the number-wheels 29, allIl'lOUQll the number-wheel-operating pawls 28 are retracted less than a tooth-space of the number-wheels. The registeuclearing handle 3? is then turned. causing the clearing shaft 238 and the cams 3-39 upon it to turn in a counterclockwise direction, as seen in Figure 3. The teeth 39 of the cams 39 pick up the pawls 4.0 on the mmlher-w'heels 29 in the positions to which they have been moved in the preceding counting); operations, and turn the number-wheels. When the mimberwheels have been moved to 0, the turning of the clearing handle is discontinued and the unlocking handle -l-2 is released. The spring 25 immediately restores the registeroparating arm, 2-5.; and the unlocking handle i2 idly to their normal elevated positions.

Variations may he resorted to within the scope of the invention. and portions oi the improvements may he used without others.

Having thus describe-d my invention, 1 claim:

l. in a ty iewritiiro machine, a nnlnber key, a register for counting the operations oi' the nuniber-key, means normally maintaining the register in locked condition to prevent clearing thereof. the register comprising register clearingr mechanism, means for unlocking the regri to permit operation of the register-clearing mechanism, and supplen'iental means tor insuring that no vomiting operation ot the register will ensue as a result of the operation of the unl :l-zing means.

in a t v'pewriting machine. a numbery. a register for counting: the operations the number-koy, norn'ially maintaim-id in alocked condition, comprising clearing mechanisn'i, l'QQ'lSl'GY-OPGXf-ltiHQ means movable to unlock the regi ter. and supplemental means for moving the register-operatin; means a mechanically limited distance to unlock the register, to permit the register to be cleared. without causing a counting operation thereof.

In a typewriting machine. a number- 'key, a register for counting: the operations ol the number-key, IlOl'li'lZtllY n'la-intained in a locked condition. comprising" clearing HIQClIEIDlSIYi. re 'ister-operatingr means movable to ettect counting operations of the register. and an unlocking:handle tor movirn; the regrister-operating means through a dis tance less han that necessanv to cause u counting operation to be el'l octed.

4-. in a typewriting machine. a numberkev. a register tor counting the operations ot the nun'iber-key, normally maintained sullicient to unlock the register for clearingpurposes.

In a typeu'riting machine, a numherkey, a register for counting the operations of the iu'nnber-key, normally maintained in a locked coiu iitiou, comprising clearingi'nechanism, a register-operat'ing 'flllll movable to unlock the register and to cause the register to be operated, an lllllOCiiing handle for moving the register-operating arm to unlock the register, and means for arresting the movement of the unlocking; handle when the operating arm has been moved a distance sufiicient to unlock the register but insufficient to cause a counting operation thereof.

(5. In a typewriting machine. a numberhey, a register operated by the number-key normally maintained in a locked condition. a register-operating arm movable to unlock the register and to cause the register to be operated, unlocking means for moving the registenoperating arm to unlock the register, and means for controlling the distance the operating arm may be moved in said unlocking movement.

7. Ina typeWriting machine, a numberkey, a. register operated by the number-key normally maintained in a locked condtion, a register-operating arm movable betyyeen fixed stop positions to unlock the register and to cause the register to be operated, and supplemental unlocking means for moving the register-operating arm to an in- V termediate position to unlock the register independently of the number-key for clearing purposes.

8. In a typewriting machine, a number key, a register, clearing mechanism therefoiu a registerroperating arm arranged to be vibrated between fixed stop positions by the depression of the number-key, a spring for returning the register-operating arm to normal position, and supplemental means for partially retracting the register-operating arm independently of the number-key for clearing purposes.

9. In atypewriting machine, a numberkey, a normally-locked register comprising clearing mechanism a reciprocable re steroperating arm, connections between the number-key and the register-operating arm for fully depressing the operating arm to prepare the register for counting, said op erating arm being efi'ective in the initial portion of its depression to unlock the register, a lever engaging the operating arm for depressing it, and a stop for limiting the range of mover: .nt oi the lever n). In combiuaton, a reg ster con'iprisiug ing mechanism, a r g -operating intaining the operatinal at the advance limit of its movement to in intain the register in a locked condition and tor advancing the operating arm to effect a counting operation each ii ll retraction of the operating arm. and .me causing a partial. retraction of the operating arm of predetermined extent to unlock the register so as to permit the operation of the clearing mechanism.

ll. In a t -.'i iewritiug machine, a numberkey, mechanism for counting the operations of the number-my, comprising number Wheels having ratchet-teeth thereon and reciprocable pawls for advancing the number- Wheels in counting, an operating arm arranged to advance and retract the pawls, a spring for actuating the operating arm to advance the pavvls, and to maintain them normally at the ad 'ancc limits of their movements, connections between the operating arm and the uun'iber-key for operation by tle numbenkey to retract the pawls a ratchet-tooth-space when the number-key is de nessed in Writing. Wheel-clearing mechanism, means controlled by the operating arm to lock the number-wheels in the latter portion. of the advance of the operating arm, and supplemental means for retracting the operating arm a distance sufiicient to unlock the number-wheels for clearing purposes.

12. In a typewriting machine, a numberkey, aregister for counting the operations of the number-key, comprising number- Wheels, number-wheel-advancing mechanism, number-wheel-locking mechanism controlled by the advancing mechanism to lock the number-Wheels in the latter portion of the advance, clearing mechanism, supplemental means for retracting the number-Wheel-advancing mechanism a limited distance to unlock the register, and means for automatically restoring the advancing mechanism to its advance limit of movement to cause the register to be unlocked at 0.

13. In a machine of the class described, a register comprising a series of number- Wheels with individual locking means, a clearing mechanism for the wheels, a register-operating arm having a uniform fullstroke movement to release the locking means and register an operation, and supple mental means to unlock the Wheels without registering, "for clearing purposes.

14. In a typewriting machine, a frame, a number-key, a removable bracket secured to the frame for supporting said register, register-operating means carried by the bracket for operation by the number-key but unconnected thereto, and means having a limited range of movement to partially actuate the register-opcrating means to unlock the numher-wheel and permit the register to be cleared.

1.5. In a machine of the class described, a

register comprising a series of numberwheels and a clearing mechanism, an arm for operating the register to count, and a lever supplemental to the arm to condition the register without counting, for clearing purposes.

16. In a machine of the class described, a counting register comprising a series of number-wheels and a means to clear the wheels to 0, an arm for operating the register having a uniform movement bet-ween fixed stops, and a lever supplemental to the operating arm to prevent registry of the latter and condition the Wheels for clearing them t 0 17. In a machine of the class described, a counting register comprising a series of number-wheels, individual wheel-locking means and a wheel-clearing mechanism, an arm for operating the register that vibrates between fixed stops, and a supplemental'lever to vibrate said arm to an intermediate position between the stops to unlock the Wheels and render the clearing mechanism operative to restore the wheels to 0.

18. In a machine of the class described, a register comprising a series of numberwheels and a wheel-clearing mechanism, a series of pawls for driving individual wheels, a carrier for the pawls arranged to vibrate between fixed stops to register, an arm to vibrate the carrier, and means supplemental to said arm whereby the carrier and pawls may be vibrated to an inoperative position between the stops and render the clearing mechanism effective to restore the wheels to 077' 19. In a machine of the class described, a register comprising a series of numberwheels and a register-clearing mechanism, interlocks to prevent movement of the Wheels in either direction at normal position, individual pawls to drive each wheel forwardly to register, a carrier for all the pawls to swing between fixed stops at each registering movement, an arm to operate the carrier for a full stroke at each movement, and a lever supplemental to the arm whereby the arm will unlock the wheels and vibrate the carrier and pawls to an inoperative position between the stops and condition the wheels to co-operate with the register-clearing mechanism to restore the reglster to 0.

ADOLPH Gr. KUPETZ. 

